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OMNISCANNER User Guide
Return Loss results for OMNISCANNER and OMNIREMOTE.
Press (Graph) to display the Return Loss
graph for the highlighted pair. The Return Loss is
displayed for the frequency indicated by the
cursor position.
Press (Pairs) to view Return Loss graphs for
other pairs.
Press (Diagnostics) to display the TDRL screen, where cabling
and/or connection faults can be identified. (See Chapter 6 - Diagnostics:
Using TDRL to diagnose a Link for further information.)
Press ESC to exit the RETURN LOSS screen.
ELFEXT
ELFEXT (Equal Level Far End Crosstalk) measures the electromagnetic
coupling at the far end and normalizes the result to account for the
cable’s attenuation. ELFEXT is reported in dB and results are computed
for twelve pair combinations at the OMNISCANNER and the OMNIREMOTE
end of the cabling.
In the ELFEXT screen, the worst case margin for all near and far pair
combinations is shown at the top of the screen.
The pair combinations are displayed in the column on the left side,
followed by the ELFEXT value, the margin/limit and the frequency. The
result for each pair combination is tagged with a PASS , Marginal
PASS , Marginal FAIL , or FAIL indicator.
The scrollbar indicates that there are more test
results. Use the ê on OMNISCANNER's keypad to
scroll through the list and view results for the
other six pair combinations.
Press or to toggle between the
ELFEXT results for OMNISCANNER and OMNIREMOTE.
Press (Graph) to display the ELFEXT graph for the currently
highlighted pair combination. ELFEXT is displayed for the frequency
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